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The parallel of latitude approximately 66°34′ north, the southern boundary of the North Frigid Zone, marking the approximate limit north of which the sun remains above the horizon all day on the summer solstice.
(Physical Geography) the imaginary circle round the earth, parallel to the equator, at latitude 66° 32′ N; it marks the northernmost point at which the sun appears above the level of the horizon on the winter solstice
an imaginary line drawn parallel to the equator, at 23°28~ S of the North Pole: between the North Frigid Zone and the North Temperate Zone.
The parallel of latitude approximately 66°33′ north. It forms the boundary between the North Temperate Zone and the North Frigid Zone.
A line of latitude, approximately 66° north of the equator, north of which the Sun does not rise at least one day in winter or set at least one day in summer; the northern hemisphere’s equivalent of the Antarctic Circle.
|Noun||1.||Arctic Circle - a line of latitude near but to the south of the north pole; it marks the northernmost point at which the sun is visible on the northern winter solstice and the southernmost point at which the midnight sun can be seen on the northern summer solstice|
severní polární kruh
den nordlige polarkreds
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